Allows you to convert almost any BT70 based model rocket to 3 -24mm cluster flights! Accepts 3 - Estes 24mm "C11" and "D" size model rocket engines. Fits in any Estes BT70 size body tube. Makes use of a sleeve tube (BT-69) instead of centering rings for construction. This engine mount kit can be converted to accept Estes "E" engines with 3 - 3.75" engine hooks. All FlisKits engine mount kits come with highly detailed instructions and laser accurate, sturdy fiber centering rings to allow for easy construction, super strong mounts and long life. Made in the USA | 
